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oploft connections
Hi,
Is there an example anywhere showing how to use connections with opLoft?
I have an array of sketch regions, an array of faces on which the sketches are drawn but I'm struggling to get the correct parameter set?
Thank you.
Answers
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I don't know if this would help, but what happens when you create a regular loft feature through the same set of sketch regions? If you look at the "show code" view for the tab, does that offer any clues?
Simon Gatrall | Product Development, Engineering, Design, Onshape | Ex- IDEO, PCH, Unagi, Carbon | LinkedIn
0 -
Thank you for your reply.
I’ve already tried that, I can see the arrays are made up of qUnions but the actual entities are difficult to trace.
Hopefully there’s a documented sample somewhere if not then I guess it’s back to the compressed code view.
0 -
So I’ve tried using loft instead of opLoft directly.
It’s close I think but not working.
loft(context, id,
{
"bodyType" : ExtendedToolBodyType.SOLID,
"operationType" : NewBodyOperationType.NEW,
"surfaceOperationType" : NewSurfaceOperationType.NEW,
"sheetProfilesArray" : [
{ "sheetProfileEntities" : qUnion([profileSubqueries[0]]) },
{ "sheetProfileEntities" : qUnion([profileSubqueries[1]]) },
{ "sheetProfileEntities" : qUnion([profileSubqueries[2]]) },
{ "sheetProfileEntities" : qUnion([profileSubqueries[3]]) }
],
"matchConnections" : true,
"connections" : [
{
"connectionEntities" : qUnion([
qAdjacent(profileSubqueries[0], AdjacencyType.EDGE, EntityType.EDGE),
qAdjacent(profileSubqueries[1], AdjacencyType.EDGE, EntityType.EDGE),
qAdjacent(profileSubqueries[2], AdjacencyType.EDGE, EntityType.EDGE),
qAdjacent(profileSubqueries[3], AdjacencyType.EDGE, EntityType.EDGE)
]),
"connectionEdgeQueries" : qUnion([
qAdjacent(profileSubqueries[0], AdjacencyType.EDGE, EntityType.EDGE),
qAdjacent(profileSubqueries[1], AdjacencyType.EDGE, EntityType.EDGE),
qAdjacent(profileSubqueries[2], AdjacencyType.EDGE, EntityType.EDGE),
qAdjacent(profileSubqueries[3], AdjacencyType.EDGE, EntityType.EDGE)
]),
"connectionEdgeParameters" : { 'value' : [0.5, 0.5, 0.5, 0.5] }.value
}
]
}
);
profileSubqueries contain the sketch regions to loft.
This image shows what the above connections are supposed to correct. The connections are to the sketch circle profiles.
If I manually loft without connections I get:
This image shows the manual loft with connections to the sketch circle profiles - which is what my code should be doing.
Any thoughts appreciated.
Thank you.
0 -
How are the sketched circles created in the first place? If they're all oriented the same way, there should be no need for connections - it should just work.
I don't know if this will help in this case, but sometimes splitting a closed curve - such as a circle - into two curves can make loft behave better. If all the circles are two 180 degree arcs with the end points at 12 and 6 o'clock, loft should just work without manually giving it connections.
Simon Gatrall | Product Development, Engineering, Design, Onshape | Ex- IDEO, PCH, Unagi, Carbon | LinkedIn
0 -
Thank you for your reply.
The sketches are created in FS on the faces of the parts using skEllipse. They are all oriented the same way with the same diameter.
A manual loft does indeed seem to work if the the circles are split into two arcs as you suggested.
I can look at changing my FS to draw arcs but hopefully somebody from OS can shed some light on using the connections parameters, since they are documented.
0 -
Using arcs seems to work:
Thank you again for the suggestion.
I won't mark this as answered just yet as I'm hoping we can crack connections!
1 -
What does it look like if you add a debug point to the 0 parameter on each circle? I'm curious if they are lined up or not.
1 -
Thank you for your reply.
A different config but similar problems:
0 -
Here's a manual loft using FS produced sketches with and without connections applied:
So it's not an issue with opLoft per se.
0
